Lubricator.



G. B. HUDGES. LUBRIGATOB..

APPLIOATION FILED Novga, 1908.

994,316. Pamnma June 6,- 1911.

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` UNITED sTATEs PATENT oEEIoE.

CLARENCE B. HODGES,`KOF DETROIT, MICHIGAN, ASSIGNOR TO DETROIT LUBRICATOR COMPANY,v OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

LUBEICATOE.

To all whom 'it may concern:

Be it known that I, CLARENCE B. HoDcEs, a citizen of the United States of'Amerlca,

vresiding at 44 Ferry avenue east, in the citysight element and travel across the same so that it may be clearly observed.

The invention further consists in the construction and arrangement in combination of the various parts as is more full hereinafter described and particularly pointed out in the claims.

In the drawings, Figure 1 is a vertical central section through a lubricator embodying my invention; Fig. 2 is an elevation of the lubricator shown in Fig. 1, looking at the right-hand side, partly in section; and Fig. 3 is a detached sectional perspective of a modified form of sight-feed element which may be used for carrying out my invention.

A represents the oil reservoir, in the top of which is secured a head B into which the condenser pipe C leads. Through this head is the oil exit aperture D controlled by the valve E, the oil passing out through the nipple F. The water of condensation passes through the passage a controlled by the valve G and into a nozzle I-I which extends down a slight distance into the oil reservoir. In the construction shown there are two tubular chambers I formed in opposite walls of t-he reservoir, which may be properly called sight-feed chambers.

J are twosight-feed glasses held in place by nuts K bearing against the packing L. The inner ends of these sight-feed glasses bear against opposite sides of lugs M cast on and projecting from the wall of the oil reservoir.

N is the lill-opening, O the drain-cock.

yTheinner faces o? of Vthe two sight-feed glasses J yare arranged in such close` prox- Vimlty on opposite sides of the nozzle H'that when a drop of water issues from the nozzle (the reservoir being filled with oil) it will impinge against both of these faces and travel downward in contact therewith. With the observation glasses onl opposite vsides there will be a spot of light observed moving from the nozzle downward when the drop of water feeds, and thus thefeed'is easily observable. I have indicated in Fig. 2 'in dotted lines at P several of these dro'ps as they will be observed as in use.

It is necessary in a device of this kind that there shall be room on either side of the descending drop of water for the oil to ascendin other Words, that-to attempt to feed a drop of water into a tube which the drop would entirely lill would be inoperative. However, the ordinary tubular glass type of lubricator may be modified to embody my invention as by attening the tube into substantially an oval shape, as shown at Q, Fig. 3. In this construction I have indicated the ordinary tubular glass, round at the top so as to engage the ordinary head, but flattened intermediate of its length so that the water drop in passing down would impinge against both walls thereof and yet give ample room on either side for the upward passage of the lubricant.

It is obvious that one of the glasses J may be furnished with a reliecting surface and produce somewhat similar results, although much the best "result is obtained by having a transparent surface upon opposite sides of thedrop of water.

I lind in practice that for ordinary lubricators the space for the travel of the drop between the two walls should be from oneeight-h to iiveLthirty seconds of an inch in width. The kind of oil used and the conditions of use might vary this somewhat. I find too, where the oil travels in contact with the two walls that a st-eadier more regular feed is obtained, for instance, in feeding to engine cylinders.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

Patented June 6, 1911.

l. In a lubricator, the combination of a cup-shaped chamber having at its top a central opening, a pair of oppositely disposed sight-feed glasses arranged above said chamber, means for holding the glasses in position on said chamber, a lug interposed between the adjacent face of the glasses to hold the same slightly spaced apart, and a nozzle positioned in the space between the glasses for the emission of the drops of water, the glasses being so arranged that the space therebetween is narrower than the diameter of the drops from the nozzle.

2. In a lubricator, the combination of a cup-shaped chamber having at its top a central opening, a pair of oppositely disposed sight feed glasses arranged above said chamber, a packing interposed between the walls surrounding the opening of the chamber and the glasses, means for holding the glas-ses in posit-ion on said chamber, a lug interposed between the adjacent face of the glasses to hold the same slightly spaced apart, and a nozzle positioned in the space between the glasses for the emission of the drops of water,the glasses being so arranged that the space therebetween is narrower than the diameter of the drops from the nozzle, and the said space being positioned above and in registration with the opening in the chamber, and said nozzle having a diameter slightly less than said space, whereby to afford a passage way for oil from above the glasses.

In testimony whereof I aiix my signature in presence of two witnesses.

CLARENCE B. HODGES. Witnesses:

JAMES P. BARRY,

W. J. BELKNAP.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

